It was also available as a free download (with Internet Explorer) for other versions of the operating system, and for Apple's Mac OS 9. Outlook Express was introduced in 1997 and was standard issue with Windows 98, Me, 2000 and XP.
Users of non-Microsoft email tools, such as Thunderbird ( /3buruj), may need to update their software.
However, the company admitted that PC users who rely on Outlook, or Entourage on the Mac, will be able to continue using these commercial Microsoft email applications to access their Hotmail accounts.
